Improvement in water-gages



UNITED STATES PATENT OFFICE.

FRANCIS A. HOYT, OF BUFFALO, NEW YORK.

IMPROVEMENT IN WATER-GAGES.

Specification forming part of Letters Patent No. 43,4l l, dated .Iuly 5, 15T-1 To all whom, it may concern.:

Be it known that I, FRANCIS A. HoYT, now

' of the city of Buffalo and State of New York,

` steam chamber below the valveseat, the valveseat being located in the upper portion of the dry-steam chamber, so that the valve must act upwardly against it.

The objectot this invention is to provide means to remedy certain diliculties which exist in the inventions patented to me on the 26th of July and the 18th of October, 1859, which difficulties are as follows: The valveseat in each ot' those patents presents a surface upon which sediment and certain gummy matter collect and adhere in a manner to prevent a full, easy, and sure operation ot' the valve. My present improvement avoids these ditlicultics by reason ot the arrangement of the valve-seat in the upper part of the drysteam chamber, and operating the valve below.

the valve seat so that the valve must move upwardly to take its place on the valve-seat. In this improvement it is impossible for any sediment or gummy matter to settle or collect upon the Valveseat. A perfect Iitting of the valve upon its seat and a free, easy, and per- 'ect working of the valve are at all times iusured.

Letters of like name and kind refer to like parts in each of the tigures.

A represents a section ot' the boiler.

B is a hollow post, which screws into the boiler and supports a dry-steam chamber above and outside of the boiler.

C is a hollow disk supported upon the post B, and forms the dry-steam chamber C.

D represents a steam-whistle, which is located at the upper part of the dry-steam chamber.

E is the valve seat, which is located in the upper portion ot' the dry-steam chamber.

F is the valve, which is connected to the operating-lever G by means of the chain H.

I is a spiral spring for the purpose-ot' lifting the valve back to its place after it has been opened.

J is the index-hand, and K is the index-face.

L is the tloat, which may be made ot' thin, light metal, much lighter than it has heretofore been made, on account of filling it with dry steam.I

M is a hollow stem, which screws into the oat within the boiler, and passes up through the hollow post B, and by means of the hollow joint N connects with the operating-lever Gr within the dry-steam chamber o, so that the float L may till with dry steam, and thereby equalize the pressure inside of the tloat with the pressure outside. This allows the float to be made very light and buoyant. The indexhand connects with the operating-lever G by means of the shaft O, as shown in Fig. I.

I is a spiral spring.

The index-hand will indicate the height ot' the water in the boiler. When the water falls to a dangerous point, the valve to the steamwhistle will be opened by means of the described mechanism withn the drysteam chamber and the alarm given.

What I claim as my invention, and desire to secure by Letters Patent, is-

The arrangement of the valve-seat in the upper part ot' the dry-steam chamber, in cim` bination with the operating-lever-Gr and connecting-chain H, for the purposes and substantially as described.

FRANCIS A.;HOYT.

Witnesses:

E. B. FoaBUsH, GEO. W. WALLACE. 

